287790625 has 48 divisors (see below), whose sum is σ = 391849920. Its totient is φ = 210600000.

The previous prime is 287790617. The next prime is 287790641. The reversal of 287790625 is 526097782.

It is not a de Polignac number, because 287790625 - 2³ = 287790617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2196810 + ... + 2196940.

It is an arithmetic number, because the mean of its divisors is an integer number (8163540).

Almost surely, 2^287790625 is an apocalyptic number.

287790625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287790625 is a deficient number, since it is larger than the sum of its proper divisors (104059295).

287790625 is an equidigital number, since it uses as much as digits as its factorization.

287790625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 287790625 is about 16964.3928568045. The cubic root of 287790625 is about 660.2253783392.

The spelling of 287790625 in words is "two hundred eighty-seven million, seven hundred ninety thousand, six hundred twenty-five".